<div ng-controller="ComboBoxDemoEnableCtrl">
    <wi-comboBox dataProvider="mydata"
                 itemChange="itemChangeHandler"
                 width="500"
                 rowCount="8"
                 enable="{{myEnable}}">
    </wi-comboBox>
    可用：<input type="checkbox" class="wi-checkbox" ng-checked="myEnable" ng-click="myEnable = !myEnable"/>
    选中项：{{selected | json}}
</div>
